// 代码索引 3-10-1-1
#include <iostream>
#include <Eigen/Dense>

using namespace std;
using namespace Eigen;

int main()
{
     int array[8];
     for(int i = 0; i < 8; ++i) array[i] = i;
     cout << "Column-major:\n" << Map<Matrix<int,2,4> >(array) << endl;
     cout << "Row-major:\n" << Map<Matrix<int,2,4,RowMajor> >(array) << endl;
     cout << "Row-major using stride:\n" <<
          Map<Matrix<int,2,4>, Unaligned, Stride<1,4> >(array) << endl;

     return 0;
}